節點JS body-parser-xml不工作

Question

我想處理JSON和XML類型的請求，所以我在我的節點應用程序中使用了body-parser-xml。

我的問題是第二個XML元素沒有綁定到req.body，但我得到的第一個元素值。

我的代碼是：

var loopback = require('loopback'); 
var boot = require('loopback-boot'); 
var cfenv = require('cfenv'); 
var bodyParser = require("body-parser"); 
var cookieParser = require('cookie-parser'); 
require('body-parser-xml')(bodyParser); 

var app = module.exports = loopback(); 
var appEnv = cfenv.getAppEnv(); 

app.use(bodyParser.json()); 
app.use(bodyParser.xml({ 
    limit: '1MB', // Reject payload bigger than 1 MB 
    xmlParseOptions: { 
     normalize: true, // Trim whitespace inside text nodes 
     normalizeTags: false, // Transform tags to lowercase 
     explicitArray: false // Only put nodes in array if >1 
    } 
})); 

app.use(bodyParser.urlencoded({ 
    "extended": true 
})); 

// boot scripts mount components like REST API 
boot(app, __dirname); 

app.start = function() { 
    // start the web server 
    return app.listen(process.env.PORT || 3000, function() { 
     console.log("env port" + process.env.PORT); 
     app.emit('started'); 
     var baseUrl = app.get('url').replace(/\/$/, ''); 
     console.log('Web server listening at: %s', baseUrl); 
     if (app.get('loopback-component-explorer')) { 
      var explorerPath = app.get('loopback-component-explorer').mountPath; 
      console.log('Browse your REST API at %s%s', baseUrl, explorerPath); 
     } 
    }); 
}; 

// start the server if `$ node server.js` 
if (require.main === module) { 
    app.start(); 
} 

我的路線：

module.exports = function(app) { 
    var router = app.loopback.Router(); 
    var User = app.models.pusers; 
    var js2xmlparser = require("js2xmlparser"); 

    app.use(function(req, res, next) { 
     res.header("Access-Control-Allow-Origin", "*"); 
     res.header("Access-Control-Allow-Headers", "X-Requested-With"); 
     if (req.get("content-type") !== 'undefined') { 
      if (req.get("content-type") == 'application/json') { 
       res.setHeader('content-type', req.get("content-type")); 
      } else if (req.get("content-type") == 'application/xml') { 
       res.setHeader('content-type', req.get("content-type")); 
      } 
     } 
     next(); 
    }); 

    app.middleware('initial', function logResponse(req, res, next) { 
     res.on('finish', function() {}); 
     req.on('end', function(data) {}); 
     req.on('data', function(data) { 
      // the request was handled, print the log entry 
      console.log(req.method, req.originalUrl, res.statusCode); 
      if (req.get("content-type") == 'application/xml') { 
       console.log("xml data's :" + data); 
      } else if (req.get("content-type") == 'application/json') { 
       console.log("json data's :" + data); 
      } 
     }); 
     next(); 
    }); 

    function responseHandler(req, res, data) { 
     if (req.get("content-type") == 'application/json') { 
      return JSON.stringify(data); 
     } else if (req.get("content-type") == 'application/xml') { 
      return js2xmlparser("response", JSON.stringify(data)); 
     } else 
      return data; 
    } 

    router.post('/login', function(req, res) { 
     var response = {}; 
     console.log(req.body); 
     console.log(req.body.username); 
     try { 
      User.find({ 
       where: { 
        name: req.body.username 
       } 
      }, function(err, data) { 
       if (err) { 
        response = { 
         "error": true, 
         "message": "Error fetching data" 
        }; 
       } else { 
        if (data.length != 0) { 
         if (data[0].name == req.body.username && data[0].password == req.body.password) { 
          response = { 
           "error": false, 
           "data": "Success" 
          }; 
         } else { 
          response = { 
           "error": false, 
           "data": "Password is incorrect" 
          }; 
         } 
        } else if (data.length == 0) { 
         response = { 
          "error": false, 
          "data": "Username is incorrect" 
         }; 
        } 
       } 
       console.log("Check login"); 
       res.end(responseHandler(req, res, response)); 
      }); 
     } catch (ex) { 
      console.error("Error while retrive all data from User Model by name", ex); 
      res.end(responseHandler(req, res, "Error while inserting User Model by name")); 
     } 
    }); 

    app.use(router); 
} 

我怎樣才能解決這個問題？

Answer 1

我發現如果將整個數據封裝到單個XML標記中，您會收到完整的集合。例如：

<data> 
    <username>somename</username> 
    <password>passwd</password> 
</data> 

然後訪問它在node.js中爲：

req_xml = req.body["data"]; 
    console.log(req_xml["username"]); 
console.log(req_xml["password"]);